enware aquablend 2000 User manual

Installation Instructions
FOR USE IN AUSTRALIA
Call 1300 369 273
www.enware.com.au
Enware Australia Pty Limited
9 Endeavour Rd Caringbah NSW 2229 Australia
Ph: [phone] Fax: [phone]
AQUABLEND 2000
THERMOSTATIC
MIXING VALVE
I00109_Jul16 IS226

www.enware.com.au Call 1300 369 273 2
PRODUCT FEATURES
Complies with the
requirements of AS4032.1
-Thermostatic Mixing
Valves
Provides high stability of
mixed water temperature
even under changing inlet
conditions
Ensures rapid shut down
of mixed outlet ow in the
event of hot or cold water
supply failure
Designed for quick and
simple in-situ servicing
Suitable for installation into
AS3500 compliant systems
with hot water temperature
as low as 55°C for
temperature differential
Fitted with a Tamper
Resistant temperature
adjustment mechanism
installingcondence
Enware reserves the right to change any product specification or information
contained in this publication, at any time and without notice. Every care
has been taken to ensure accuracy in the Preparation of this publication
which has been issued for guidance only. No liability can be accepted for any
consequences which may arise as a result of its application. Enware = trade
mark of Enware Australia Pty Limited.
Aquablend TMV’s are exclusively manufactured for Enware Australia Pty Limited
by Reliance Worldwide, 27-28 Chapman Place, Eagle Farm, Qld, 4009 Australia.
The ENWARE AQUABLEND 2000
Thermostatic Mixing Valve is a
high performance Thermostatic
Mixing Valve suitable for a wide
range of applications. The valve
is designed to comply with
AS4032.1 - Thermostatic Mixing
Valves.
AQUABLEND 2000 THERMOSTATIC MIXING VALVE
CONTENTS
SAFETY page 3
PRODUCT DESCRIPTION page 4
RECOMMENDED PRESSURES
AND TEMPERATURES page 7
FLOW SIZING GRAPH page 8
INSTALLATION page 9
COMMISSIONING OF THE VALVE page 12
MAINTENANCE & SERVICING page 15
TROUBLE SHOOTING page 17
SPARE PARTS page 19
COMMISSIONING REPORT page 20
SERVICING REPORT page 23
WARRANTY page 26

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SAFETY
The ENWARE AQUABLEND 2000 Thermostatic Mixing Valve
is a high performance valve designed to give stable and
dependable operation, provided it is installed, commissioned,
operated and maintained as per the recommendations
outlined in this manual. It should be noted however that this
valve should not be considered as an alternative to adequate
supervision and duty of care during its use and operation.
Note: When installed, the mixing valve, inlet controls,
pipework and the surrounding area may become hot, which
may cause burn injuries. Precautions should be taken to
ensure that these surfaces cannot cause such injuries.

www.enware.com.au Call 1300 369 273 4
PRODUCT DESCRIPTION
The ENWARE AQUALBLEND 2000 Thermostatic Mixing
Valve is available in two variations, complete with inlet service
ttings. The inlet to the ttings is ½” BSP male for ATM711,
and ¾” BSP female for ATM713. The outlet from both valves
is ¾” BSP male. The service ttings consist of isolating ball
valves, strainers, pressure test points and non-return valves.
The strainers can be serviced and cleaned without disturbing
the installation (refer to Maintenance & Servicing Pg 15).
The inlet service ttings also incorporate union type ttings
enabling the thermostatic mixing valve to be removed from its
installation without disturbing its pipework.
The schematics and dimensions of the Aquablend 2000 Male
& Female valves and corresponding order codes are shown
below in Figure 1 and Figure 2 respectively.
3/4" BSP
3/4" BSP
88
118
176
246
Figure 2
1/2" BSP
3/4" BSP
118
176
88
244
Figure 1
Figure 1 -
Physical Size
AQUABLEND 2000 –
Polished, chrome
plated nish on the
body & inlet ttings.
½“ BSP Male Inlet
ttings with compres-
sion nuts. ¾” BSP
Male Outlet Fitting.
Dry Weight 1.7kg
ORDER CODE
ATM711
Figure 2 -
Physical Size
AQUABLEND 2000 –
Polished, chrome
plated nish on the
body & inlet ttings.
¾” BSP Female
Inlet ttings. ¾” BSP
Male Outlet Fitting.
Dry Weight 1.7kg
ORDER CODE
ATM713

5 Call 1300 369 273 www.enware.com.au
Figure 3 (below) shows a general arrangement drawing of
the ENWARE AQUABLEND 2000 Thermostatic Mixing Valve
showing the method of operation.
Hot and cold water is supplied to each side of the valve
respectively. The hot water enters through a port below the
Piston, the cold water enters above the Piston. Upon entry
the water begins to blend and enters the Mixing Tube. At
this point the mixed water contacts the thermostatic wax
Element. The Element will extend or contract to match the
water temperature it is exposed to causing the Piston to move,
thereby regulating the amounts of hot and cold water entering
the valve. This thermostatic mechanism maintains the mixed
water temperature at a constant temperature.
If for example the inlet hot pressure dropped, the ow of hot
water into the valve would be reduced and the valve would
react as per the following sequence of events:
• Element is exposed to mixed water at a reduced temperature
• Thermostatic Element contracting
• Piston is pushed upwards by the return spring restricting cold
HOT
INLET
COLD
INLET
MIXED
OUTLET
RETURN
SPRING
THERMOSTATIC
ELEMENT
MIXING
TUBE
PISTON
Figure 3 - General Arrangement Drawing

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ow, consequently opening more of hot port
• Valve attempts to restore itself to original temperature setting
Similarly if the hot inlet temperature dropped, the element
would again see blended water at a lower temperature and
therefore the Element would again contract reducing the
cold port piston gap and hence supply more hot water and
less cold. Once again the valve attempts to restore itself to
its original setting. This will occur for all changing conditions
including changes to ow rate, inlet temperatures and inlet
pressures.
In the event of a sudden loss of the cold water supply the
Piston will shut off the hot port thus stopping any ow through
the valve. The valve will also shut down the cold supply if there
is a hot water failure.

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RECOMMENDED PRESSURES
& TEMPERATURES
MIXED OUTLET TEMPERATURE
Temperature Adjustment Range 38-50°C
INLET TEMPERATURES
Cold Supply Minimum 5°C
Maximum 30°C
Hot Supply Minimum 55°C
Maximum 90°C
Hot to Mix Temperatures Differential for
Stable Operation Minimum 10°C
Cold to Mix Temperatures Differential
for Stable Operation Minimum 5°C
FLOW RATES - TO ENSURE STABLE CONDITIONS
Minimum 2 lpm (4 lpm recommended for optimum
performance)
Maximum 38 litres/min @ 300kPA Pressure loss as per ow
sizing graph
DYNAMIC INLET PRESSURES
Hot & Cold Inlet Pressures Minimum 20kPa
Maximum 500kPa
STATIC INLET PRESSURES
Hot & Cold Inlet Pressures Maximum 1600kPa
INLET PRESSURE RATIO
H - PL = H¹
C - PL = C¹
H¹ : C¹ = Max 10:1
C¹ : H¹ = Max 10:1
H = Hot inlet pressure
C = Cold inlet pressure
PL = Pressure Loss
Refer to page 25 - Appendix 1 for more information
* 4 litres/minute is recommended as the optimum minimum ow rate.
** For optimum operation it is recommended that the hot & cold water supply
pressures be balanced to within +/- 10%.
NOTE: Notwithstanding the above, compliance with AS3500 must
be maintained.

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0
50
100
150
200
250
300
350
Flow Rate (L/min)
Pressure Loss (kPa)
HEADLOSS CHARACTERISTICS OF AQUABLEND 2000
0510 15 20 25 30 35 40
NOTE: Stable temperature water is available at 2 litres/
minute however to ensure optimum performance it is
recommended the minimum outlet ow of the mixing valve
during operation should be 4 litres/minute.
It is important that the valve is sized such that the ow rates
from the outlets are not less than those listed in AS3500.1
Sec 3. The pipework between the valve and the system must
be sized in accordance with AS3500.1 to ensure the water
velocity in the pipework is within the allowed limit.
If the valve is to be installed and operated under unequal
inlet pressures the lower inlet pressure determines the outlet
ow rate. However, for optimum performance and stability
it is recommended that the valve be installed with balanced
dynamic inlet pressures (+/- 10%).
FLOW SIZING GRAPH
The ENWARE AQUABLEND 2000 Thermostatic Mixing Valve
is suitable for many applications. The Headloss Characteristic
for Mixed Outlet Flowrate versus Balanced Inlet Pressure is
shown below in Figure 4. It is important that the valve is not
oversized for its intended application.
Figure 4

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INSTALLATION
The ENWARE AQUABLEND 2000 Thermostatic Mixing Valve
should be installed using the appropriate Standard, Code of
Practice and Legislation applicable to each state and following
the details outlined in this section.
The ENWARE AQUABLEND 2000 must be installed by a
licensed plumber, or where applicable, a licensed plumber who
has undertaken T.A.F.E. or equivalent accredited training in
Thermostatic Mixing Valves.
NOTE: To effectively control microbial hazards during
system design, installation, commissioning and
maintenance, the requirements outlined in AS/NZS3666 and
local legislation shall be adhered to.
Inlet connections on the valve are clearly marked. The hot
inlet is indicated by a red identication ring on the inlet
and the cold inlet by a blue identication ring.
If the valve is not installed correctly then it will not function
correctly and may put the user in danger. It may also void the
warranty of the valve.
Prior to the installation of the valve, the system must be
checked to ensure that the system operating conditions fall
within the recommended operating range of the AQUABLEND
2000 Thermostatic Mixing Valve as detailed on page 7. If
the hot water supply temperature is greater than 90°C
the valve may be damaged. A suitable temperature limiting
valve must be tted to the hot water supply, prior to the inlet
ttings, if the temperature of the hot water will rise above 90°C.
This temperature limiting valve must be installed as per the
manufacturer’s instructions. Alternatively, use AQUABLEND
1500 SOLAR - Code ATM715. It is also important that
both of the inlet dynamic supply pressures are 500kPa
or less. If either supply pressure exceeds 500kPa then a
suitable pressure reducing valve must be tted prior to the
inlet control valve to reduce the pressure to an acceptable
limit. These pressure reducing valves must be installed as per
the manufacturer’s instructions. In order to achieve optimum

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performance from the valve it is recommended that the inlet
pressures are balanced to within 10% of each other. The water
quality conditions should be checked to ensure they do not
exceed the limits as listed in Section 1.6 of AS3500.4. If they do
exceed these limits then it will be necessary to install a water
softener or water treatment device.
NOTE: In some installations where certain types of
tapware, such as ick mixers and solenoid valves, are
used; the water pressure may be seen to spike outside that
recommended for the valve during rapid shut off conditions
with these types of devices. Even if the spike only lasts a
split second it is still considered to be outside the operating
conditions and may cause the valve to operate incorrectly.
In the event that this does occur measures must be taken
to control the spike, such as inline pressure reducing valves
directly before the valve inlets.
To ensure that the mixing valve operates correctly it is
necessary that the pipework is thoroughly ushed with
clean water before the valve is installed. This will remove
any physical contaminants from the pipework, ensuring
trouble-free operation. During the ushing procedure care
should be taken to prevent water damage occurring to the
surrounding area.
It is required by AS3500.4 Sec 3 that “Each Thermostatic
Mixing Valve shall have an isolating stop tap/valve, line
strainer and non-return valve tted to the hot and cold water
supply lines”. The inlet ttings supplied with each TMV will
ensure this requirement is met. If the ENWARE AQUABLEND
2000 Thermostatic Mixing Valve is to be installed without the
supplied inlet control valves then it will be necessary to install
a separate isolating valve, non-return valve and strainer to
both inlets to the valve. Strainers must be tted to prevent
any particulate contamination from entering the valve. These
strainers should be 60 Mesh stainless steel. Isolating valves
are required so that the water supply to the valve can be

11 Call 1300 369 273 www.enware.com.au
isolated in the event that servicing is required. Non-return
devices must also be tted to both the hot and cold inlets to
prevent cross-connection.
The valve should be installed so it can be accessed easily
for maintenance or servicing. The valve can be installed in a
wall cavity, under a basin or on a wall, however it is essential
that the mixing valve and inlet ttings are easily accessible for
servicing.
During installation or servicing heat must not
be applied near the mixing valve or inlet ttings,
as this will damage the valve and inlet tting
internals. Failure to comply with this requirement will
damage the valve and ttings. It will put the user at risk,
and it will void the warranty of the valve.
SCHEMATIC INSTALLATION DIAGRAM
 THERMOSTATIC MIXING VALVE
 NON RETURN VALVE
 HOT WATER TEST POINT
 COLD WATER TEST POINT
 LINE STRAINER (60 MESH STAINLESS STEEL)
 ISOLATING VALVE
 PRESSURE LIMITING VALVE (IF REQUIRED)
 TEMPERATURE LIMITING VALVE (IF REQUIRED)
 COLD WATER INLET CONTROL VALVE
 HOT WATER INLET CONTROL VALVE
PIPEWORK
COLD SUPPLY HOT SUPPL
Y
MIXED OUTLET
Figure 5 - Schematic Installation Diagram

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COMMISSIONING OF THE VALVE
Upon completion of the installation, the valve should be
tested & commissioned as per the procedure outlined below
or as specied by the local authority. The entire procedure
should be read through thoroughly prior to the commissioning
of the valve. A calibrated digital thermometer having rapid
response time with maximum temperature hold, small at
bladed screwdriver and the adjusting key (supplied with the
AQUABLEND 2000) will be required to check & set the outlet
mixed temperature of the valve. Enware provides a complete
test kit for this procedure.
(Order Code ATMS1200)
• Ensure all outlets that will be serviced by the valve have
adequate warning signs posted to ensure that no outlet is used
during commissioning
• Open the cold supply line to the valve, then open the hot
supply line, ensuring there are no leaks
• Open the outlet that is serviced by the shortest length of pipe
work between the mixing valve and outlet xture
• Allow the mixed outlet to ow for at least 60 seconds to
allow the temperature to stabilise before taking a temperature
reading at the outlet with a digital thermometer. For optimum
performance the ow rate should be at least 4 litres/min.
The ow rate can be checked with the aid of a known size
container and a stopwatch or an Enware Flowcup supplied
with ATMS1200. The temperature should be taken at the
closest outlet served by the thermostatic mixing valve
If the outlet temperature requires adjustment the following
steps are required:
TEMPERATURE ADJUSTMENT
1. Using a small at bladed screw driver lever the protective
cover off the valve (Figure 6). (over page)
2. Fit the supplied key over the adjusting spindle (Figure 7)
• To increase the mixed outlet temperature, rotate the
spindle anti-clockwise
• To decrease the mixed outlet temperature, rotate the
spindle clockwise
3. Allow the mixed outlet temperature to stabilize for 60

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seconds and once again take a temperature reading.
Repeat the procedure until the desired temperature has
been reached.
4. Push the top cover rmly on to the top of the valve until it
‘snaps’ back into place.
5. Check that the outlet temperature is stable over the full
range of ow rates and that the ow rate is adequate for the
application.
6. Close the outlet.
7. The mixing valve is now set and locked.
Figure 6
Figure 7
Ensure that the test plugs in the top of the inlet ttings are tight

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SHUT DOWN TEST
Now that the mixing valve has been set and locked it is
necessary to perform a shut down check.
• Allow the mixed water temperature to stabilise and note the
outlet temperature. While holding a digital thermometer in the
outlet ow, quickly isolate the cold water supply to the valve.
The outlet ow should quickly cease owing. As a guide the
ow should be less than 0.2 litre/min following the isolation.
Monitor the maximum outlet ow temperature, record this on
the Commissioning Report (page 20). The temperature should
not exceed that allowed by the applicable standard or code of
practice for each state. Restore the cold water supply to the
valve. After the mixed water temperature has stabilised note
the outlet temperature ensuring the outlet temperature has re-
established.
• Repeat the above test, except this time quickly isolate the
hot water supply to the valve. The outlet ow should quickly
slow to a trickle - as a guide typically less than 0.4 litre/
min@500kPa down to less than 0.2litre/min@100kPa following
the isolation. Restore the hot water supply to the valve and
measure and record in the Commissioning Report (page 20)
the outlet temperature after the mixed water temperature has
stabilised ensuring the outlet temperature has re-established.
• Ensure that all details of the Commissioning Report are
completed & signed by the relevant signatories & a copy is
kept with the installer and owner of the premises.
The valve is now commissioned and it can be used within the
technical limits of operation.

15 Call 1300 369 273 www.enware.com.au
MAINTENANCE AND SERVICING
The ENWARE AQUABLEND 2000 Thermostatic Mixing Valve
will only require minimal preventative maintenance work to
ensure it operates at its optimum level of performance. The
valve should be commissioned, and serviced in accordance
with AS4032.3 and the manufacturing specications.
ANNUAL MAINTENANCE PROCEDURE
The ENWARE AQUABLEND 2000 should be inspected &
tested every twelve months in accordance with AS4032.3.
Record all results in the Servicing Report (refer to page 23)
• The external valve surface should be lightly wiped down
• The valve & surrounding area should be inspected for leaks
or water damage and appropriate action taken if required
• Ensure a clean dry work area is available
A) Cleaning the Strainers
• Isolate the hot and cold supplies to the mixing valve by
closing the inlet ball valves
• Remove the inlet tting top cover with a suitable spanner and
then remove the mesh strainer, as shown in Figure 8
• The strainers should be cleaned with a dilute water solution
of suitable descaling solvent (such as CLR), checked for
physical damage and then thoroughly rinsed with clean water
• The strainers can then be re-installed into the inlets and the
top cover returned and tightened
to a maximum torque of 15Nm
into the inlet valve bodies.
Check that the test plug in the
top of the inlet ttings are tight,
then re-open the Isolating valves
and check there is no evidence
of water leakage
STRAINER
INLET TOP CAP
INLET TEST
PORT CAP
NYLON WASHER FOR
TEST PORT CAP
Figure 8

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B) Non-Return Valve Operation
Check Non-Return Valves on the HOT inlet side - visual
inspection.
• Turn OFF the isolation tap on the HOT inlet only (COLD inlet
must be open)
• Open Test Port Cap on the HOT inlet side
• Observe water level in the HOT inlet side test port. If there
is a rising water level this may indicate a fouled or faulty Non-
Return Valve - replace if required
• Replace the test port cap on HOT inlet side ensuring it is
tighly secured
• Turn back ON the isolation tap on the HOT inlet
Check Non-Return Valves on the COLD inlet side repeating
steps above using the COLD inlet side.
C) Discharge temperature measured at the nearest outlet
to the valve for high and low ow
D) The cold water shut-off operation
E) The hot water shut-off operation
Where a device is not functioning in accordance with the
application requirements, the problem shall be rectied or the
device replaced - refer to the Troubleshooting on page 17.
The valve piston ‘O’ ring and thermostatic element/piston
assembly must be replaced at intervals not exceeding 5
years.

17 Call 1300 369 273 www.enware.com.au
TROUBLESHOOTING
FAULT/
SYMPTOM CAUSE RECTIFICATION
The desired
mixed water
temperature
cannot be
obtained
or valve is
difcult to
set
• Hot and cold supplies
are tted to the wrong
connections
• Valve contains debris
• Strainers contain debris
• Non-return devices are
damaged
• Top Cap and/or Piston
O-rings are damaged
• Ret the valve with Hot/
Cold supplies tted to the
correct connections
• Clean the valve ensuring
that all debris is removed
and components are not
damaged
• Clean strainers ensuring
debris is removed
• Check non-return device
is not jammed.Clean it if
necessary
• Check Top Cap & Piston
O-rings for damage.
Replace if necessary
The valve
will not shut
down
• The hot to mix temperature
differential is not 10°C or
greater
• The piston O-ring is
damaged
• Valve body seat (Hot Seat
is damaged or fouled by
debris
• Cold seat (bottom surface
of Top Cap) is damaged
• Thermostatic element has
failed
• Plastic shuttle of
Thermostatic element has
been damaged by debris
• Raise hot water
temperature
• Replace piston O-ring
• Clean seat using mild
descaling solution
• Replace top cap
• Replace element
Mix
temperature
unstable
• Debris is fouling valve
• Flow rate below 2L/min
• Strainers are fouled
• Clean valve ensuring
all debris is removed &
components aren’t damaged
• Rectify any pressure
deterioration. Increase ow
rate to minimum of 4 litres/
min
• Clean strainers
Mix
temperature
changing
over time
• Inlet conditions (pressures
or temperatures) are
uctuating
• Strainers contain debris
• Install suitable pressure
control valves to ensure
inlet conditions are within
those stated on Page 7
• Clean strainers ensuring
debris is removed

www.enware.com.au Call 1300 369 273 18
TROUBLESHOOTING
FAULT/
SYMPTOM CAUSE RECTIFICATION
Either full
hot or cold
owing from
outlet xture
• Valve is incorrectly set.
• Hot/Cold water has
migrated to other inlet
• Refer also to fault/symptom
1 & 2
• Adjust mix temperature
between 38 - 50°C as
required
• Replace faulty non-return
valves
No ow from
the valve
outlet
• Hot or cold water failure
• Strainers are fouled
• Valve functioning correctly
- shut down due to inlet
supply failure. Restore inlet
supplies and check mix
temperature
• Clean strainers
Flow rate
reduced or
uctuating
• Valve or inlet ttings fouled
by debris
• Dynamic inlet
pressures are not within
recommended limits
• Check valve and inlet
ttings for blockages
• Ensure operating conditions
are within specied limits
and the dynamic inlet
pressures are nominally
balanced to within +/- 10%
Mixed water
temperature
too hot or
cold
• Valve has been tampered
with
• Valve incorrectly set
• Inlet temperatures are not
within specied limits
• Readjust valve to required
set temperature
• Readjust valve to required
set temperature
• Ensure inlet temperatures
are within the specied limits
as listed on Page 7
Mixed water
temperature
not changing
when the
temperature
adjuster is
altered
• Return spring is missing
• Thermostatic element has
failed
• Install return spring
• Replace piston/thermostatic
element
Mixed water
temperature
adjuster
difcult to
move
• Adjuster at maximum mix
temperature stop
• Valve piston into overstroke
• Mixed water is at maximum
temperature. No higher mix
temperature adjustment is
available
• Wind adjuster out until set
temperature required is
achieved
Hot water
ows into the
cold water
system or
vice versa
• Non-return valve • Replace non-return valves
Valve is noisy • Water velocity above
velocity requirements of
AS3500.1 Sec 3.4
• Reduce water velocity

19 Call 1300 369 273 www.enware.com.au
SPARE PARTS
Face Seals
ATMS213 Non-Return Valve (Each)
ATMS212
Inlet Fitting
Control Valve
3/4” FI Hot - ATMS705
3/4” FI Cold - ATMS703
1/2” MI Hot - ATMS501
1/2” MI Cold - ATMS502
Inlet Fitting
Strainers (Pair)
ATMS205
Inlet Cap to suit ATMS238
(Each)
ATMS244
Pressure Test Point Plug
With O-Ring (Pair)
ATMS238
Element and Piston
Assembly
O-Ring Kit
ATMS123
Lock Shield
Top Cap Assembly
OLD STYLE
Pressure Test Point Plug
With Washer (Each)
ATMS1314
Pressure Test Point
Washer Only (Each)
ATMS1204
Mixing Tube
Return Spring
ATMS190
5 YEAR
SERVICE KIT
ATMS242
PART REPLACEMENT TIME PART NUMBER
5 Year Service Kit (includes o-rings) 5 years ATMS242
O-Ring Kit when required ATMS123

www.enware.com.au Call 1300 369 273 20
COMMISSIONING REPORT
Enware Thermostatic Mixing Valve Commissioning Report For
Thermostatic Mixing Valves use a separate sheet for each valve
Establishment
Address
Phone No Contact
Date Work Order
No.
Make & Model of Hot Water Unit
Hot Water
Pressure kPa
Cold Water
Pressure kPa
Temp ˚C Temp ˚C
Cold Water
Supply via
Pressure
Reducing
Valve Fitted
YES/NO
Make of
Mixing Valve
Model No
Size
Valve Location
/ Building
Valve ID No.
Total No. of
Mixing Valves
on Site/
Building
Total No. of
outlets served
by this valve
Baths Basins Showers
Other outlet details
Valve installed to requirements of
The drawing &
specication
The valve
manufacture /
supplier
The code of
TMV’s
The local water
supply authority
YES/NO YES/NO YES/NO YES/NO
If NO, give details and action taken